open source office
Open source office is a phrase commonly used to describe open source office productivity software. Open source office software typically contains the same applications as proprietary office software including word processing, spreadsheets, databases, graphics and presentation software.
Most open source office software can be run on a number of operating systems and will store your files in an open standard format. Open source office software may also read and write files from other proprietary office software.
Open source office productivity software is popular because it supports for many file types and it is free to download or use online, so when compared to costly proprietary office productivity software it has advantages.
Some of the more popular open source office productivity suites include OpenOffice.org, LibreOffice, AbiWord, FreeMind, Gnumeric, KOffice and Google Docs & Spreadsheets.